Tag: vital systems

What if both lines go down? Embedded vulnerability in the U.S. Southwest electrical grid

The climate of the Southwest can be extreme: summer heat that borders on suffocating, and a persistent aridity only alleviated by the violent monsoon storms of late summer. In light of these extremes, built environmental systems form the backbone of regional resilience for the Southwest. Water storage and delivery systems distribute water to otherwise dry areas, and a utility grid powers interior climate control and regional water pumping systems. Yet this resilience sits in precarious balance: if these systems are disrupted, damaged, or rendered inoperable, they lose their protective effect. In design and practice, they contribute to regional resilience, but in theory, they can also amplify vulnerability and the potential for disaster if they falter, given the reliance on these systems to cope with, and thrive in, a hostile environment. The fire season of 2011 highlights one such example. (more…)